Steel 16GS

Designation

Name	The value
Designation GOST Cyrillic	16ГС
Designation GOST Latin	16GC
Transliteration	16GS
By chemical elements	16MnС

Description

16GS steel is used: for the manufacture of parts such as bottoms, collar flanges, fittings, rings, tubes, tees and parts of rectangular shape for power equipment and pipelines with an absolute pressure of more than 3.9 MPa thermal electrostantsiya, housings and other parts operating at temperatures from -40 °C to 475 °C under pressure; welded steel elements operating at temperatures down to -70 °C; for the equipment and pipelines of nuclear power plants (NPP); the manufacture sector of elbows and tees of the piping as remote-1400−1600, welded transitions, flanges, welded tees and other fittings of pipelines, as with operating temperature from -40 °C to +350 °C; as a base layer in the manufacture of hot-rolled dual-layer corrosion-resistant sheets.

Note

Steel low-alloy silico-manganese. The degree of deoxidation — SP.
Steel 16GS provides strength grade sheet, universal broadband rental and roll-formed profiles KP 265 with plate thickness of from 20 to 160 mm., KP 295 with a thickness from 20 to 32 mm., CP 315 with a thickness of 10 to 20 mm., KP 325 with a thickness up to 10 mm. without the use of additional hardening treatment.

Standards

Name	Code	Standards
Sheets and strips	В33	GOST 10885-85, TU 14-1-5241-93, TU 14-1-3307-82, TU 14-1-4431-88
Classification, nomenclature and General rules	В20	GOST 19281-89
Steel pipes and fittings to them	В62	GOST 20295-85, GOST 24950-81, OST 24.125.30-89, HUNDRED 79814898 105-2008, TU 3-923-75, TU 1380-001-08620133-93, TU 1380-001-08620133-05, TU 1301-039-00212179-2010, TU 1310-030-00212179-2007, TU 1303-002-08620133-01
Sheets and strips	В23	GOST 82-70, GOST 5520-79, GOST 17066-94, GOST 19903-74, GOST 19904-90, GOST 19282-73, GOST 19903-90, TU 14-1-3307-81, TU 14-1-4632-93
Bars and shapes	В22	GOST 8278-83, GOST 8281-80, GOST 8282-83, GOST 8283-93, GOST 9234-74, GOST 11474-76
Processing of metals by pressure. Forgings	В03	GOST 8479-70, OST 108.030.113-87, OST 26-01-135-81
Welding and cutting metals. Soldering, riveting	В05	OST 26-260.453-92, OST 24.125.02-89, OST 26-17-017-85
Bars and shapes	В32	TU 14-136-367-2008

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	N	As	Al	Ti	Mo
GOST 19281-89	0.12-0.18	≤0.04	≤0.035	0.9-1.2	≤0.3	0.4-0.7	≤0.3	Rest	≤0.3	≤0.008	≤0.08	≤0.05	≤0.03	-
GOST 17066-94	0.12-0.16	≤0.04	≤0.035	0.9-1.2	≤0.3	0.4-0.7	≤0.3	Rest	≤0.3	≤0.008	≤0.08	≤0.03	≤0.03	-
TU 1301-039-00212179-2010	0.14-0.18	≤0.035	≤0.03	0.9-1.2	≤0.3	0.4-0.7	≤0.3	Rest	≤0.3	≤0.012	≤0.08	-	-	≤0.15

Fe is the basis.
According to GOST 17066-94, the mass fraction of arsenic is allowed up to 0.015%, with the mass fraction of phosphorus being not more than 0.030%.
According to GOST 19282-73, it is allowed to modify steel with calcium and rare-earth elements from the calculation of the introduction of not more than 0.02% calcium and 0.05% rare-earth elements into the metal.
According to GOST 19281-89 and GOST 19282-73, it is allowed to add aluminum and titanium from the calculation of the mass fraction in the rolled aluminum - no more than 0.050%, titanium - no more than 0.030%.
According to GOST 5520-79, the mass fraction of arsenic can be up to 0.15% in the smelting of steel from the Kerch ore, while the mass fraction of phosphorus should not be more than 0.030%. At the request of the consumer, the mass fraction of sulfur should not exceed 0.025, 0.030 or 0.035%, and phosphorus 0.030 or 0.035%. When steel is smelted in electric furnaces, the mass fraction of nitrogen must be ≤ 0.012%.
According to TU 1301-039-00212179-2010 the chemical composition is given for steel grade 16GS-III. The content of each impurity element, not regulated by the table, is allowed up to 0.050%.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	d₄	y, %	KCU, kJ/m²
Longitudinal electric-welded pipes TU 1303-002-08620133-01 in the delivery condition (in cross-section shows the thickness of the wall)
10-20	≥315	480-630	≥21	-	-	≥290
20-25	≥295	470-620	≥21	-	-	≥290
6-10	≥325	490-640	≥21	-	-	≥390
Rolled plates as supplied by TU 14-1-5241-93. Quenching + Tempering (samples transverse)
10-20	≥315	≥450	≥21	-	-	-
20-32	≥295	≥430	≥21	-	-	-
32-50	≥265	≥450	≥21	-	-	-
8-10	≥325	≥450	≥21	-	-	-
Sheet 2-18, 19-22 categories, heat-treated, in the state of delivery GOST 5520-79
≤10	≥325	≥490	≥21	-	-	≥589
Pre-painted steel sheet of high-strength steel in the delivery state GOST 17066-94
0.5-3.9	≥325	≥460	-	≥20	-	-
The plates and universal broadband in the state of delivery GOST 19282-73
≤10	≥325	≥490	≥21	-	-	-
Sheets with a thickness of 26 mm prokachannye (samples transverse)
-	-	≥490	≥27	-	≥51	-
Sheet 2-18, 19-22 categories, heat-treated, in the state of delivery GOST 5520-79
11-20	≥315	≥480	≥21	-	-	≥589
Pre-painted steel sheet of high-strength steel in the delivery state GOST 17066-94
0.5-3.9	≥325	≥430	-	≥20	-	-
The plates and universal broadband in the state of delivery GOST 19282-73
10-20	≥315	≥480	≥21	-	-	-
Sheets with a thickness of 26 mm prokachannye (samples transverse)
-	≥230	≥420	-	-	≥52	-
Sheet 2-18, 19-22 categories, heat-treated, in the state of delivery GOST 5520-79
21-32	≥295	≥470	≥21	-	-	≥589
The plates and universal broadband in the state of delivery GOST 19282-73
20-32	≥295	≥470	≥21	-	-	-
Sheets with a thickness of 26 mm prokachannye (samples transverse)
-	≥225	≥450	≥29	-	≥48	-
Sheet 2-18, 19-22 categories, heat-treated, in the state of delivery GOST 5520-79
33-60	≥285	≥460	≥21	-	-	≥589
The plates and universal broadband in the state of delivery GOST 19282-73
32-60	≥285	≥460	≥21	-	-	-
Sheets with a thickness of 26 mm prokachannye (samples transverse)
-	≥215	≥410	-	-	≥64	-
Sheet 2-18, 19-22 categories, heat-treated, in the state of delivery GOST 5520-79
61-100	≥275	≥450	≥21	-	-	≥589
The plates and universal broadband in the state of delivery GOST 19282-73
60-100	≥275	≥450	≥21	-	-	-
Sheets with a thickness of 26 mm prokachannye (samples transverse)
-	≥175	≥305	≥31	-	≥68	-
Sheet metal in delivery condition on the other 14-1-4632-93 (samples transverse)
10-20	315-510	450-650	≥23	-	-	-
Sheets with a thickness of 26 mm prokachannye (samples transverse)
-	≥135	≥255	≥37	-	≥68	-
Sheet metal in delivery condition on the other 14-1-4632-93 (samples transverse)
20-25	265-460	430-630	≥23	-	-	-
Sheets with a thickness 4-160 mm. Normalization 950 °C, cooling at a speed of 80-100 °/h + Vacation at 600-750 °C (maintained for 5 h), cooling speeds of 50 °/h (samples transverse)
-	245-295	470-500	27-38	-	51-72	-
Sheet metal in delivery condition on the other 14-1-4632-93 (samples transverse)
5-10	325-520	450-650	≥23	-	-	-
Sheets with a thickness 4-160 mm. Normalization 950 °C, cooling at a speed of 80-100 °/h + Vacation at 600-750 °C (maintained for 5 h), cooling speeds of 50 °/h (samples transverse)
-	175-255	420-450	24-31	-	52-74	-
-	195-225	390-480	22-29	-	48-70	-
-	175-225	450-480	25-31	-	66-71	-
-	175-215	400-430	27-34	-	64-76	-
-	145-195	255-345	31-38	-	68-85	-
Seamless pipes for steam boilers and pipelines on the other 3-923-75. Hardening + Vacation
	≥294	≥491	≥18	-	≥40	≥589
Sheets with a thickness 4-160 mm. Normalization 950 °C, cooling at a speed of 80-100 °/h + Vacation at 600-750 °C (maintained for 5 h), cooling speeds of 50 °/h (samples transverse)
-	110-125	155-175	38-46	-	82-90	-
Seamless tubes made of steel 16GS-ø in delivery condition on the other 1301-039-00212179-2010. Annealing in air 900-930 °C + Vacation at 630-670 °C, air cooling (carrying out normalization at 900-930 °C or normalization with the release at 630-670 °C)
-	≥275	490-635	≥18	-	≥40	≥590
Pipe hot rolled. In the delivery condition
32530	260-280	≥480	27-28	-	57-65	981-1177

Description mechanical marks

Name	Description
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_U	Limit short-term strength
d₅	Elongation after rupture
d₄	Elongation after rupture
y	The relative narrowing
KCU	Toughness

Physical characteristics

Temperature	Е, HPa	r, kg/m³	a, 10^-6 1/°C	С, J/(kg · °C)
300	181	-	129	470
400	172	-	135	-
500	162	-	161	-
20	-	7850	-	-
100	-	-	111	470
200	-	-	121	-
600	-	-	139	-
800	-	-	141	-

A description of the physical symbols

Name	Description
Е	The normal elasticity modulus
r	Density
l	Coefficient of thermal conductivity
R	UD. the resistivity
a	The coefficient of linear expansion

Technological properties

Name	The value
Weldability	Welded without any restrictions. Welding methods: SMAW, ADS under flux and gas protection. For manual arc welding using electrodes УОНИ13/55; for automatic submerged arc - welding wire SV-08ГА or SV-10G2 with flux an-348A; for welding in protective gases Ar and CO2 welding wire SV-08G2S.
Склонность к отпускной хрупкости	Tend not.
The temperature of forging	Start - 1200 °C, the end - 850 °C.
Flock-sensitive sensitivity	not sensitive.